package com.atguigu.common.valid;

import javax.validation.ConstraintValidator;
import javax.validation.ConstraintValidatorContext;
import java.util.HashSet;
import java.util.Set;

public class ListValueConstraintValidator implements ConstraintValidator<ListValue,Integer> {
    private Set<Integer> set =new HashSet<>();
    //初始化方法
    @Override
    public void initialize (ListValue constraintAnnotation) {
        int[] vals = constraintAnnotation.vals();
        if (vals != null){
            for (int val : vals) {
                set.add(val);
            }
        }

    }

    //判断是否校验成功

    /**
     *
     * @param integer 需要校验的值
     * @param constraintValidatorContext
     * @return
     */
    @Override
    public boolean isValid (Integer integer, ConstraintValidatorContext constraintValidatorContext) {

        return set.contains(integer);
    }
}
